11 february 2019


\[ PGR = \frac{P(t_2) - P(t_1)}{P(t_1)(t_2 - t_1)} \]
## Warning: 'scatter' objects don't have these attributes: 'margin' ## Valid attributes include: ## 'type', 'visible', 'showlegend', 'legendgroup', 'opacity', 'name', 'uid', 'ids', 'customdata', 'selectedpoints', 'hoverinfo', 'hoverlabel', 'stream', 'transforms', 'x', 'x0', 'dx', 'y', 'y0', 'dy', 'text', 'hovertext', 'mode', 'hoveron', 'line', 'connectgaps', 'cliponaxis', 'fill', 'fillcolor', 'marker', 'selected', 'unselected', 'textposition', 'textfont', 'r', 't', 'error_x', 'error_y', 'xcalendar', 'ycalendar', 'xaxis', 'yaxis', 'idssrc', 'customdatasrc', 'hoverinfosrc', 'xsrc', 'ysrc', 'textsrc', 'hovertextsrc', 'textpositionsrc', 'rsrc', 'tsrc', 'key', 'set', 'frame', 'transforms', '_isNestedKey', '_isSimpleKey', '_isGraticule', '_bbox'
[1] https://www.kaggle.com/fernandol/countries-of-the-world [2] https://data.worldbank.org/
[3] https://www.ecology.com/population-estimates-year-2050/
[4] https://en.wikipedia.org/wiki/Demographic_transition